The Narda 3042B-20 is a coaxial directional coupler engineered for RF and microwave signal sampling and monitoring across the 0.92 GHz to 2.2 GHz band. Operating with a nominal coupling of 20 dB (±0.5 dB), this Type N connector device delivers 20 dB minimum directivity and exceptionally low insertion loss of 0.20 dB, making it ideal for high-power applications requiring minimal signal degradation.
Designed for peak power handling of 10 kW and average power of 500 W, the 3042B-20 maintains excellent impedance characteristics with primary line VSWR of 1.10:1 maximum and secondary line VSWR of 1.20:1 maximum. Frequency sensitivity is held to ±0.25 dB across the operating range, ensuring stable performance in demanding RF systems. The unit weighs 0.60 kg and measures 6.12 × 2.12 × 3.00 inches, enabling straightforward integration into existing test benches and signal chains.
Technical Specifications
• Frequency Range: 0.92 GHz to 2.2 GHz
• Nominal Coupling: 20 dB (±0.5 dB)
• Directivity: 20 dB (minimum)
• Insertion Loss: 0.20 dB
• VSWR (Primary): 1.10:1 (maximum)
• VSWR (Secondary): 1.20:1 (maximum)
• Frequency Sensitivity: ±0.25 dB
• Peak Power: 10 kW
• Average Power: 500 W
• Connector Type: Type N (Male/Female)
• Weight: 0.60 kg (1.25 lbs)
• Operating Temperature (Guaranteed): 23 °C
– Key Features
• High power capability to 10 kW peak
• Low insertion loss with superior directivity performance
• Permanent nameplate calibrations
• Compact form factor for flexible deployment
– Typical Applications
• RF and microwave signal monitoring
• Power measurement and control systems
• Network analysis and characterization
• General-purpose high-frequency testing
– Compatibility & Integration
Type N connectors provide universal compatibility with standard RF test equipment and transmission line systems. The 3042B-20 integrates directly into measurement chains without adapter requirements.
